1a. Arrange the following compounds in order of increasing
boiling points: ethyl methyl ether, CH3OCH2CH3; 2-methyl propane or
isobutane, (CH3)2CHCH3; and acetone, CH3COCH3.
b. In each of the following groups of substances pick the one
that has the given property. Justify each answer. a. Highest
boiling point: CCl4, CF4, CBr4 b. Smallest vapor pressure at 25 ºC:
CH3OCH3, CH3CH2OH, CH3CH2CH3 c. Greatest heat of vaporization:
H2CO, CH3CH3, CH4